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Skip to Search Results- 795Biological Sciences, Department of
- 795Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 63Mathematical and Statistical Sciences, Department of
- 63Mathematical and Statistical Sciences, Department of/Research Publications (Mathematical and Statistical Sciences)
- 39The NSERC TRIA Network (TRIA-Net)
- 39The NSERC TRIA Network (TRIA-Net)/Journal Articles (TRIA-Net)
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2014-01-01
Potts, Jonathan R., Lewis, Mark A.
Territory formation is ubiquitous throughout the animal kingdom. At the individual level, various behaviours attempt to exclude conspecifics from regions of space. At the population level, animals often segregate into distinct territorial areas. Consequently, it should be possible to derive...
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How linear features alter predator movement and the functional response Royal Society Interface Focus
Download2012-01-18
Hannah W. McKenzie, Evelyn H. Merrill, Raymond J. Spiteri, Mark A. Lewis1
In areas of oil and gas exploration, seismic lines have been reported to alter the movement patterns of wolves (Canis lupus). We developed a mechanistic first passage time model, based on an anisotropic elliptic partial differential equation, and used this to explore how wolf movement responses...
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2016-01-01
Jonathan R. Potts, Mark A. Lewis
Mechanistic home range analysis (MHRA) is a highly effective tool for understanding spacing patterns of animal populations. It has hitherto focused on populations where animals defend their territories by communicating indirectly, e.g. via scent marks. However, many animal populations defend...
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2001-01-01
Observations on Mount St Helens indicate that the spread of recolonizing lupin plants has been slowed due to the presence of insect herbivores and it is possible that the spread of lupins could be reversed in the future by intense insect herbivory [Fagan, W. F. and J. Bishop (2000). Trophic...
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How the mountain pine beetle (Dendroctonus ponderosae) breached the Canadian Rocky Mountains
Download2014-01-01
Sperling, Felix A. H., Murray, Brent W., Li, Yisu, Coltman, David W., Bohlmann, Joerg, Janes, Jasmine K., Cooke, Janice E. K., Boone, Celia K., Huber, Dezene P.W., Keeling, Christopher I., Yuen, Macaire M. S.
The mountain pine beetle (MPB; Dendroctonus ponderosae Hopkins), a major pine forest pest native to western North America, has extended its range north and eastward during an ongoing outbreak. Determining how the MPB has expanded its range to breach putative barriers, whether physical...
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2005
Hurd, T. E., Hebblewhite, M., Nietvelt, C. G., Paquet, P. C., Fryxell, J. M., White, C. A., Bayley, S. E., McKenzie, J. A.
Abstract: Experimental evidence of trophic cascades initiated by large vertebrate predators is rare in terrestrial ecosystems. A serendipitous natural experiment provided an opportunity to test the trophic cascade hypothesis for wolves (Canis lupus) in Banff National Park, Canada. The first wolf...
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1997
Likens, G. E., Vitousek, P. M., Tilman, D., Schindler, D. W., Howarth, R. W., Aber, J. D., Schlesinger, W. H., Matson, P. a.
Nitrogen is a key element controlling the species composition, diversity, dynamics, and functioning of many terrestrial, freshwater, and marine ecosystems. Many of the original plant species living in these ecosystems are adapted to, and function optimally in, soils and solutions with low levels...
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Hybridization asymmetries in tsetse (Diptera: Glossinidae): role of maternally inherited factors and the tsetse genome
Download2000
Abstract: Among the morstians-group of tsetse there are several pairs of taxa in which there is a marked hybridization asymmetry (HA), i.e., one cross produces significantly more offspring than does the reciprocal cross. To investigate the relative contribution of maternally inherited factors...
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Hymenolepis diminuta (Cestoda) induces changes in expression of select genes of Tribolium confusum (Coleoptera)
Download2009
Belosevic, M., Shostak, A. W., Hitchen, S. J.
The flour beetle Tribolium confusum is a common experimental intermediate host for the tapeworm Hymenolepis diminuta, but while many aspects of their host-parasite interactions have been determined to have genetic basis, the genes involved have not been identified. In this paper, we report on the...
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Hypophysiotropic action of pituitary adenylate cyclase activating polypeptide (PACAP) in the goldfish: Immunohistochemical demonstration of PACAP in the pituitary, PACAP stimulation of growth hormone release from pituitary cells, and molecular cloning of goldfish pituitary type I PACAP receptor
Download1998
Shea, W.L.C., Wong, A.O.L., Chang, J.P., Tse, L.Y., Leung, M.Y., Chow, B.K.C.
Pituitary adenylate cyclase-activating polypeptide (PACAP) is a member of the glucagon/secretin peptide family, and its molecular structure is highly conserved in vertebrates. In this study, the functional role of PACAP in regulating GH release in the goldfish was investigated. Using...